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asterisk/Makefile.rules
Corey Farrell a10a3aff6a Build System: Improve ccache matching for different menuselect options. 
Changing any Menuselect option in the `Compiler Flags` section causes a
full rebuild of the Asterisk source tree.  Every enabled option causes
a #define to be added to buildopts.h, thus breaking ccache caching for
every source file that includes "asterisk.h".  In most cases each option
only applies to one or two files.  Now we only define those options for
the specific sources which use them, this causes much better cache
matching when working with multiple builds.  For example testing code
with an without MALLOC_DEBUG will now use just over half the ccache
size, only main/astmm.o will have two builds cached instead of every
file.

Reorder main/Makefile so _ASTCFLAGS set on specific object files are all
together, sorted by filename.  Stop adding -DMALLOC_DEBUG to CFLAGS of
bundled pjproject, this define is no longer used by any header so only
serves to break cache.

The only code change is a slight adjustment to how main/astmm.c is
initialized.  Initialization functions always exist so main/asterisk.c
can call them unconditionally.  Additionally rename the astmm
initialization functions so they are not exported.

Change-Id: Ie2085237a964f6e1e6fff55ed046e2afff83c027
2018-08-01 12:01:15 -04:00

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Makefile
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#
# Asterisk -- An open source telephony toolkit.
#
# Makefile rules
#
# Copyright (C) 2006-2010, Digium, Inc.
#
# Kevin P. Fleming <kpfleming@digium.com>
#
# This program is free software, distributed under the terms of
# the GNU General Public License
#
# Each command is preceded by a short comment on what to do.
# Prefixing one or the other with @\# or @ or nothing makes the desired
# behaviour. ECHO_PREFIX prefixes the comment, CMD_PREFIX prefixes the command.
-include $(ASTTOPDIR)/makeopts
# Helpful functions
# call with $(call function,...)
tolower = $(shell echo $(1) | tr '[:upper:]' '[:lower:]')
# Takes a list of MENUSELECT_CFLAG Id and returns CFLAGS to declare
# the ones which are enabled.
get_menuselect_cflags=$(patsubst %,-D%,$(filter $1,$(MENUSELECT_CFLAGS)))
.PHONY: dist-clean
# If 'make' decides to create intermediate files to satisfy a build requirement
# (like producing a .i from a .c), we want to keep them, so tell make to keep
# all intermediate files
.SECONDARY:
# extra cflags to build dependencies. Recursively expanded.
MAKE_DEPS=-MD -MT $@ -MF .$(subst /,_,$@).d -MP
ifeq ($(findstring ADDRESS_SANITIZER,$(MENUSELECT_CFLAGS)),ADDRESS_SANITIZER)
_ASTLDFLAGS+=-fsanitize=address
_ASTCFLAGS+=-fno-omit-frame-pointer -fsanitize=address
endif
ifeq ($(findstring THREAD_SANITIZER,$(MENUSELECT_CFLAGS)),THREAD_SANITIZER)
_ASTLDFLAGS+=-fsanitize=thread -pie -fPIE
_ASTCFLAGS+=-fno-omit-frame-pointer -pie -fPIE -fsanitize=thread
endif
ifeq ($(findstring LEAK_SANITIZER,$(MENUSELECT_CFLAGS)),LEAK_SANITIZER)
_ASTLDFLAGS+=-fsanitize=leak
_ASTCFLAGS+=-fno-omit-frame-pointer -fsanitize=leak
endif
ifeq ($(findstring UNDEFINED_SANITIZER,$(MENUSELECT_CFLAGS)),UNDEFINED_SANITIZER)
_ASTLDFLAGS+=-fsanitize=undefined
_ASTCFLAGS+=-fno-omit-frame-pointer -fsanitize=undefined
endif
ifeq ($(NOISY_BUILD),)
ECHO_PREFIX=@
CMD_PREFIX=@
else
ECHO_PREFIX=@\#
CMD_PREFIX=
endif
OPTIMIZE?=-O3
ifneq ($(findstring darwin,$(OSARCH)),)
ifeq ($(shell if test `/usr/bin/sw_vers -productVersion | cut -c4` -gt 5; then echo 6; else echo 0; fi),6)
# Snow Leopard/Lion has an issue with this optimization flag on large files (like chan_sip)
OPTIMIZE+=-fno-inline-functions
endif
endif
ifeq ($(findstring DONT_OPTIMIZE,$(MENUSELECT_CFLAGS))$(AST_CODE_COVERAGE),no)
_ASTCFLAGS+=$(OPTIMIZE)
else
_ASTCFLAGS+=-O0
endif
ifeq ($(AST_CODE_COVERAGE),yes)
_ASTCFLAGS_COVERAGE=-ftest-coverage -fprofile-arcs
_ASTLDFLAGS+=-ftest-coverage -fprofile-arcs
else
_ASTCFLAGS_COVERAGE=
endif
ifeq ($(findstring $(CONFIG_CFLAGS),$(_ASTCFLAGS)),)
_ASTCFLAGS+=$(CONFIG_CFLAGS)
endif
# shortcuts for common combinations of flags; these must be recursively expanded so that
# per-target settings will be applied
CC_CFLAGS=$(PTHREAD_CFLAGS) $(_ASTCFLAGS) $(ASTCFLAGS)
CXX_CFLAGS=$(PTHREAD_CFLAGS) $(filter-out -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations $(AST_DECLARATION_AFTER_STATEMENT),$(_ASTCFLAGS) $(ASTCFLAGS))
# Clang -Werror warning suppressions
ifeq ($(C_COMPILER_FAMILY),clang)
CC_CFLAGS+=-Wno-unused-value -Wno-parentheses-equality
endif
ifeq ($(GNU_LD),1)
SO_SUPPRESS_SYMBOLS=-Wl,--version-script,$(subst .so,.exports,$@),--warn-common
ifneq ($(wildcard $(subst .so,.dynamics,$@)),)
SO_SUPPRESS_SYMBOLS+=-Wl,--dynamic-list,$(subst .so,.dynamics,$@)
endif
endif
CC_LDFLAGS_SO=$(PTHREAD_CFLAGS) $(_ASTLDFLAGS) $(SOLINK) $(SO_SUPPRESS_SYMBOLS) $(ASTLDFLAGS)
CXX_LDFLAGS_SO=$(PTHREAD_CFLAGS) $(_ASTLDFLAGS) $(SOLINK) $(SO_SUPPRESS_SYMBOLS) $(ASTLDFLAGS)
CC_LIBS=$(PTHREAD_LIBS) $(LIBS)
CXX_LIBS=$(PTHREAD_LIBS) $(LIBS)
# determine whether to double-compile so that the optimizer can report code path problems
# In this case, we run the preprocessor to produce a .i or .ii file from the source
# code, then compile once with optimizer enabled (and the output to /dev/null),
# and if that doesn't fail then compile again with optimizer disabled
ifeq ($(findstring COMPILE_DOUBLE,$(MENUSELECT_CFLAGS)),COMPILE_DOUBLE)
COMPILE_DOUBLE=yes
endif
ifeq ($(findstring DONT_OPTIMIZE,$(MENUSELECT_CFLAGS))$(AST_DEVMODE),)
_ASTCFLAGS+=$(AST_FORTIFY_SOURCE)
endif
ifeq ($(findstring BUILD_NATIVE,$(MENUSELECT_CFLAGS)),BUILD_NATIVE)
_ASTCFLAGS+=-march=native
endif
%.o: %.s
$(ECHO_PREFIX) echo " [AS] $< -> $@"
ifeq ($(COMPILE_DOUBLE),yes)
$(CMD_PREFIX) $(CC) -o /dev/null -c $< $(CC_CFLAGS) $(OPTIMIZE)
endif
$(CMD_PREFIX) $(CC) -o $@ -c $< $(CC_CFLAGS) $(_ASTCFLAGS_COVERAGE)
%.o: %.i
$(ECHO_PREFIX) echo " [CCi] $< -> $@"
ifneq ($(AST_CLANG_BLOCKS),)
ifeq ($(COMPILE_DOUBLE),yes)
$(CMD_PREFIX) $(CC) -o /dev/null -c $< $(CC_CFLAGS) $(OPTIMIZE) -Wno-unused-command-line-argument
endif
$(CMD_PREFIX) $(CC) -o $@ -c $< $(CC_CFLAGS) $(_ASTCFLAGS_COVERAGE) -Wno-unused-command-line-argument
else
ifeq ($(COMPILE_DOUBLE),yes)
$(CMD_PREFIX) $(CC) -o /dev/null -c $< $(CC_CFLAGS) $(OPTIMIZE)
endif
$(CMD_PREFIX) $(CC) -o $@ -c $< $(CC_CFLAGS) $(_ASTCFLAGS_COVERAGE)
endif
ifneq ($(COMPILE_DOUBLE),yes)
%.o: %.c
$(ECHO_PREFIX) echo " [CC] $< -> $@"
$(CMD_PREFIX) $(CC) -o $@ -c $< $(MAKE_DEPS) $(CC_CFLAGS) $(_ASTCFLAGS_COVERAGE)
endif
%.i: %.c
$(ECHO_PREFIX) echo " [CPP] $< -> $@"
$(CMD_PREFIX) $(CC) -o $@ -E $< $(MAKE_DEPS) $(CC_CFLAGS) $(_ASTCFLAGS_COVERAGE)
%.oo: %.ii
$(ECHO_PREFIX) echo " [CXXi] $< -> $@"
ifeq ($(COMPILE_DOUBLE),yes)
$(CMD_PREFIX) $(CXX) -o /dev/null -c $< $(CXX_CFLAGS) $(OPTIMIZE)
endif
$(CMD_PREFIX) $(CXX) -o $@ -c $< $(CXX_CFLAGS) $(_ASTCFLAGS_COVERAGE)
ifneq ($(COMPILE_DOUBLE),yes)
%.oo: %.cc
$(ECHO_PREFIX) echo " [CXX] $< -> $@"
$(CMD_PREFIX) $(CXX) -o $@ -c $< $(MAKE_DEPS) $(CXX_CFLAGS) $(_ASTCFLAGS_COVERAGE)
endif
%.ii: %.cc
$(ECHO_PREFIX) echo " [CPP] $< -> $@"
$(CMD_PREFIX) $(CXX) -o $@ -E $< $(MAKE_DEPS) $(CXX_CFLAGS) $(_ASTCFLAGS_COVERAGE)
%.so: %.o
ifeq ($(GNU_LD),1)
$(CMD_PREFIX) $(ASTTOPDIR)/build_tools/make_linker_version_script $* "$(LINKER_SYMBOL_PREFIX)" "$(ASTTOPDIR)"
endif
$(ECHO_PREFIX) echo " [LD] $^ -> $@"
$(CMD_PREFIX) $(CC) -o $@ $(CC_LDFLAGS_SO) $^ $(CC_LIBS)
%.so: %.oo
ifeq ($(GNU_LD),1)
$(CMD_PREFIX) $(ASTTOPDIR)/build_tools/make_linker_version_script $* "$(LINKER_SYMBOL_PREFIX)" "$(ASTTOPDIR)"
endif
$(ECHO_PREFIX) echo " [LDXX] $^ -> $@"
$(CMD_PREFIX) $(CXX) -o $@ $(CXX_LDFLAGS_SO) $^ $(CXX_LIBS)
%: %.o
$(ECHO_PREFIX) echo " [LD] $^ -> $@"
$(CMD_PREFIX) $(CXX) -o $@ $(PTHREAD_CFLAGS) $(_ASTLDFLAGS) $^ $(CXX_LIBS) $(ASTLDFLAGS)
dist-clean:: clean
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